融资客的行为一直备受市场关注，投资者寄望能从中捕捉到投资机会。证券时报·数据宝统计，3月21日共有3665只个股获融资资金买入，其中买入金额居前的个股有比亚迪，买入额为14.79亿元；东方财富买入额为11.75亿元；浙大网新买入额为6.75亿元。从融资买入额占个股当日成交额比例来看，4只个股买入额占成交额比例超30%。（数据宝）

　　3月21日融资买入占成交额居前个股

证券代码证券简称融资买入额（万元）成交金额（万元)融资买入占比（%)涨跌幅(%)300066三川智慧3968.249943.4139.91-0.67688345博力威728.612012.3836.21-2.99603776永安行12368.4936605.5733.7910.01688786悦安新材1322.354065.0532.53-2.96688559海目星4502.0515157.7529.70-1.25688320禾川科技7360.9724813.1629.67-3.78688669聚石化学600.472158.7827.82-0.81603639海利尔412.721554.8226.54-0.56688690纳微科技1808.376924.1226.12-2.52688420美腾科技302.201184.7425.51-2.09688539高华科技1067.504298.6324.83-0.81000885城发环境1490.966012.7624.800.38688218江苏北人5017.3920252.8824.77-4.18688710益诺思787.063182.0424.73-1.88000557西部创业2773.1411359.6124.411.08688101三达膜950.413918.3424.260.00688588凌志软件2363.629831.7024.04-1.10002062宏润建设1751.527291.1724.020.00688273麦澜德2243.219341.1624.01-8.61688228开普云2886.5112046.7623.96-3.40688596正帆科技2543.6110635.7023.92-1.84601608中信重工21069.7588506.6823.8110.04600251冠农股份1206.835087.2623.720.28001387雪祺电气1184.724995.9223.71-1.30002393力生制药2393.1410146.5323.59-4.43688622禾信仪器3876.3716439.4323.58-0.47300959线上线下3946.8616862.5523.411.96688580伟思医疗1647.537061.6523.33-5.24688069德林海309.321347.6222.95-1.22688513苑东生物883.073849.5522.94-1.36